Where to get bosch cx chainring ?

[Russelliow]

As above I need a chain ring for my bosch cx powered KTM. Its different to the normal ones because the bit where it sits on the spline is fatter than the rest of the chainring.

 

[soundwave]

a pic would help are you saying the sprocket is off set to the normal ones?

 

[Russelliow]

a pic would help are you saying the sprocket is off set to the normal ones?

 

[Russelliow]

Not really offset, just fatter where it sits on the spline. The bike is a KTM macina kapoho

 

[soundwave]

http://www.pro-cycling-golla.de/Kettenblaetter/18_Zaehne_gekroepft_fuer_Chainglider_artikel54dc85a67f6b3.html

http://www.mirandabikeparts.com/products/details/sprocket-chainflow-with-echainguard-nut_284

there the only ones i can find like it but the miranda one is 100 quid at ebike shop!
https://www.e-bikeshop.co.uk/eBike-Spare-Parts/Scott-E-Genius-Bosch-Sprocket

https://www.adrenalinatv.co.uk/

there site is down atm but they got my miranda carbon crank arms and can get most bosch ebike parts.

 

[soundwave]

http://speedup.altervista.org/buy.html

that will work but again its 100 quid i have one on my haibike.

 

[Rich_uk]

The bike shop near me sells them, if I'm right in thinking what it is you need?
https://www.racecouk.com/e-bike-parts-spares/

 

[Doomanic]

My Trek Powerfly has the same type. I think it’s to offset the sprocket to allow for Plus tyres.

 

[Russelliow]

Apparently it's offset 3mm because of the boost rear hub. I have now ordered one from fli distribution.

 

[soundwave]

http://www.flidistribution.co.uk/miranda-chainring-for-bosch-motors---3mm-offset

 

[Doomanic]

40 quid for a metal pressing???

 

[Rich_uk]

Is the £12.99 one that I posted not the same thing?

 

[soundwave]

Is the £12.99 one that I posted not the same thing?

no only miranda bikes makes the off set sprockets thus why they are 2-3 times more expensive.

haibike sprockets are also a rip off as about 80 quid.
http://www.pro-cycling-golla.de/Kettenblaetter/16_Zaehne_Haibike_silber_artikel55d4b9c71fb18.html

 

[Doomanic]

No.

 

[Rich_uk]

Oh, will the £12.99 one fit my Cube?

 

[soundwave]

all the sprockets will fit the motor but if you have a off set sprocket and just use a normal one you might get clearance problems with the motor case or the frame.

 

[Russelliow]

Also a normal flat one will be loose

 

[soundwave]

you can get different lock rings my haibike one has a space then the thread my dual kit one has the thread all the way.

 

[BazP]

Put a 3mm spacer behind it.

 

[Russelliow]

Had a look today. If it had a bigger chain ring so could run on the middle of the cassette at 15mph the chain line would be fine. Next time I'll stick a spacer on the outside and use the flat chainring I bought.